This is an accurate simulation of the way the real aircraft’s ailerons and elevators function. 

The control columns in the cockpit are connected to servo-tabs on the ailerons and elevators (they look similar to trim tabs). When a servo tab is deflected in one direction, this causes the larger control surface to deflect in the opposite direction, disturbing the airflow and causing a pitching or rolling effect on the aircraft. 

The small surface of these servo tabs and the small amount of air that they disturb means that much less force is required to move them as opposed to the force that would be required to move the larger control surfaces. 

A side effect of servo tab operation is that control surfaces are less effective at low speed, with flying controls often being immovable via this method when the aircraft is stationary with no air flowing over them. However, once airflow increases over the ailerons and elevators during the take-off roll, the servo tabs will take effect, and the control surfaces will move to the commanded position.